MODIFY LOAD CURVE

This function allows the user to modify the data points of a selected load curve.

After selecting a curve in the SELECT CURVE dialog box, the SELECT OPTION dialog box illustrated in Figure 13.14.6, is displayed.

Figure 13.14.6  The Modify Curve dialog box

ADD POINT (MOUSE PICK)

Allow the user to select any location from the graph. The selected point is included in the curve.

ADD POINT (KEY IN X, Y)

Allow the user to add curve data points by keying in the X and Y values.

DELETE POINT

Remove selected data points.

MODIFY POINT

There are several options to modify data points using the SELECT OPTION dialog box illustrated in Figure 13.14.7.

Figure 13.14.7  Modify Point Options

·         INCREMENTAL XY

Enter the X, Y increments, and select OK in the next dialog box.  Select point(s) to move in the curve window.

·         KEY IN XY

Select a point in the curve window.  The X, Y values will be shown in the next dialog box.  Edit the X, Y values, and select OK. The points on the curve are moved to the new coordinates.  Repeat to modify another point.

·         NEGATE 

Select point(s).  The selected point(s) will be flipped about the X-axis.

·         SCALE

Enter the scale factors, and select OK in the next dialog box.  Select point(s). The selected point(s) will move to the scaled coordinates.

·         UNDO LAST CHANGE

Reject the last modification.

 

EDIT CURVE

This function enables user to modify the X, Y values of the curve. The EDIT CURVE dialog box is illustrated in Figure 13.14.8.

Figure 13.14.8  Edit Curve dialog box

REDRAW CURVE

This function redraws the modified curve in the display screen.